Swinburne sets out to teach young children about how shadows are created, describing night as a shadow on the earth, and giving children tangible reasons for why shadows vary in size, shape, and location. The latter half of the book invites readers to guess the origins of the shadows in vivid full-color photographs; subsequent pages provide the answers to the mysteries. A foreword contains information regarding the scientific reasons for shadows, which can be explained to small children, but it is the array of photographs that truly invites youngsters to take a closer look and analyze the world around them with an eye for the details. (Picture book/nonfiction. 3-5).